python subprocess库 终端命令行命令

https://docs.python.org/3/library/subprocess.html

import subprocess

command = "ipconfig"
subprocess.run(
    command,  # 终端命令
    shell=True  # 允许执行shell程序
)

import subprocess
import time

command = "notepad.exe"
notepad_process = subprocess.Popen(  # 启动记事本
    command,  # 终端命令
)
time.sleep(3)  # 等待3秒
notepad_process.kill()  # 销毁进程

import subprocess

command = "python.exe"
open_process = subprocess.Popen(  # 和命令交互
    command,  # 终端命令
    stdin=subprocess.PIPE,  # 输入
    stdout=subprocess.PIPE,  # 输出
    stderr=subprocess.PIPE,  # 错误
    # encoding="gbk"  # 编码格式,不指定的话，就是二进制编码
)
open_process.stdin.write("print('第1句话')n".encode())  # 输入新命令
open_process.stdin.write("print('第2句话')n".encode())
open_process.stdin.write("print('第3句话')n".encode())
open_process.stdin.write("print(10/0)n".encode())
open_process.stdin.close()  # 关闭输入管道
cmd_out = open_process.stdout.read()  # 读取信息，并返回值
open_process.stdout.close()  # 关闭输出管道
print("输出:", cmd_out.decode(encoding="gbk"))
cmd_error = open_process.stderr.read()
open_process.stderr.close()  # 关闭错误管道
print("错误:", cmd_error.decode(encoding="gbk"))